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Kava Kava
Piper methysticum G.Forst.
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Quick Facts
A powerful anxiolytic and muscle relaxant from the Pacific Islands. Used for anxiety, stress, and insomnia. Creates a calm, sociable feeling. Recent concerns about liver toxicity have limited use.
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Healing Properties
Treats & Supports
Important Safety Information
AHP Class 2b, 2c, 2d. LIVER TOXICITY concerns - several cases of hepatitis reported. Avoid with liver disease or alcohol. May cause drowsiness - don't drive. Causes temporary numbness of mouth. Avoid in pregnancy/lactation. May interact with sedatives, alcohol, and many medications. Long-term use can cause skin discoloration. Use only root, not aerial parts.
Verified Medicinal Sources & Usage
Direct links to U.S. government health databases for Kava Kava (Piper methysticum G.Forst.). No commercial or third-party sources.
Peer-reviewed studies on medicinal properties & evidence
Active clinical trials, phases & safety markers
Federally funded research & biological mechanisms
Supplement labels, standard dosages & plant parts
Consumer usage instructions & safety (NIH)
Complementary & integrative health evidence (NIH)
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